[SimplifyLibCalls] Remove useless bits of this tests.

[oota-llvm.git] / test / Transforms / InstCombine / bswap.ll

diff --git a/test/Transforms/InstCombine/bswap.ll b/test/Transforms/InstCombine/bswap.ll
index 5db4e73a546305f62b89ecb045cf13305ab12599..b48b2a57c8cefb83e0405cd57ed272ed2a59df69 100644 (file)
--- a/test/Transforms/InstCombine/bswap.ll
+++ b/test/Transforms/InstCombine/bswap.ll
@@ -1,5 +1,7 @@
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \
-; RUN:    grep {call.*llvm.bswap} | count 5
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32"
+
+; RUN: opt < %s -instcombine -S | \
+; RUN:    grep "call.*llvm.bswap" | count 7
 
 define i32 @test1(i32 %i) {
        %tmp1 = lshr i32 %i, 24         ; <i32> [#uses=1]
@@ -55,3 +57,30 @@ define i16 @test5(i16 %a) {
        %retval = trunc i32 %tmp6.upgrd.4 to i16                ; <i16> [#uses=1]
        ret i16 %retval
 }
+
+; PR2842
+define i32 @test6(i32 %x) nounwind readnone {
+       %tmp = shl i32 %x, 16           ; <i32> [#uses=1]
+       %x.mask = and i32 %x, 65280             ; <i32> [#uses=1]
+       %tmp1 = lshr i32 %x, 16         ; <i32> [#uses=1]
+       %tmp2 = and i32 %tmp1, 255              ; <i32> [#uses=1]
+       %tmp3 = or i32 %x.mask, %tmp            ; <i32> [#uses=1]
+       %tmp4 = or i32 %tmp3, %tmp2             ; <i32> [#uses=1]
+       %tmp5 = shl i32 %tmp4, 8                ; <i32> [#uses=1]
+       %tmp6 = lshr i32 %x, 24         ; <i32> [#uses=1]
+       %tmp7 = or i32 %tmp5, %tmp6             ; <i32> [#uses=1]
+       ret i32 %tmp7
+}
+
+; PR23863
+define i32 @test7(i32 %x) {
+        %shl = shl i32 %x, 16
+        %shr = lshr i32 %x, 16
+        %or = or i32 %shl, %shr
+        %and2 = shl i32 %or, 8
+        %shl3 = and i32 %and2, -16711936
+        %and4 = lshr i32 %or, 8
+        %shr5 = and i32 %and4, 16711935
+        %or6 = or i32 %shl3, %shr5
+        ret i32 %or6
+}